S-91223A219 1/4"-20 x 1" 316 Stainless Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications.
• Space-saving ultra-low profile head allows for installation in tight or recessed spaces where clearance is limited.
• Secure and efficient fastening provided by the fully threaded UNC coarse thread pattern and Class 2A fit, ensuring consistent engagement and vibration resistance.
• Precise hex drive compatibility with a 1/8" drive size for easy installation and removal using standard tools.
• Environmental and regulatory compliance with RoHS 3 and REACH, making it suitable for regulated industrial and international markets.
• Durable and long-lasting design that maintains integrity under stress, reducing the need for frequent replacements.

Professional Applications & Engineering Value

This 316 Stainless Steel Socket Head Cap Screw is engineered to address common industrial challenges such as corrosion, space constraints, and mechanical stress. Its ultra-low profile head minimizes protrusion, making it perfect for compact assemblies in machinery, automotive, and electronics where flush mounting is critical. The UNC coarse thread and Class 2A thread fit provide quick, reliable fastening with high resistance to loosening under vibration, while the fully threaded design ensures uniform load distribution. Ideal for applications in marine, chemical processing, and food equipment, this screw's corrosion-resistant properties and compliance with RoHS and REACH standards offer peace of mind for engineers prioritizing safety and durability in industrial fasteners.

Specification Summary & Compliance

This product adheres to precise dimensional tolerances, including a head diameter tolerance of -0.005" to 0.005" and a Class 2A thread fit per UNC standards for consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use. Manufactured with a right-hand thread and coarse thread spacing, it is designed for efficient assembly and disassembly in various engineering applications.